http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
최헌종(H. Z. Choi),이석우(S. W. Lee),최영재(Y. J. Choi),김기환(G. H. Kim) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.11
As recently optical communication industry is developed, request of optical communication part is increased. Ferrule is very important part which determines transmission efficiency and quality of information in the optical communication part. Most of ferrule processes are grinding which request high processing precision. Particularly, concentricity and cylindricity of inner and outer diameter is very important. The co-axle grinding process of ferrule is to make its concentricity all of uniform before centerless grinding. Surface integrity of ferrule is affected by kind of grinding wheels, grinding conditions, and characteristic of workpiece and equipment. In this study, surface integrity of workpiece according to change of grinding wheel speed, feed rate, regulating wheel speed and grinding force is investigate to improve the concentricity and roundness of ferrule from many experiments.
최헌종(H. Z. Choi),이석우(S. W. Lee),강은구(E. G. Kang),신정훈(J. H. Shin),최영재(Y. J. Choi) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Unpredictable customer needs strongly require for manufacturing enterprises to produce quality products satisfying cost and time constraints. To cope with such dynamically changing manufacturing environment and to get higher competi-tiveness, the manufacturing industry needs to equip with advanced technologies including IT as well as substantial in-frastructure. i-Manufacturing is korean government driven project for achieving manufacturing innovation in Korea. The first application industry is mould and die industry. Because the effect of innovation in mould and die industry is transmitted to other manufacturing industry. The most basic but important concept of the i-Manufacturing is collaboration. As a part of the project, we are developing 7 different collaboration systems which is currently used by more than 300 mould & die companies. In this paper, we first in-troduce the i-Manufacturing and collaboration systems we have developed. The collaboration strategy in mould and die industry will also explained in detail.
최헌종(H. Z. Choi),이석우(S. W. Lee),김기환(G. H. Kim),최영재(Y. J. Choi) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.4
As recently optical communication industry is developed, request of optical communication part is increased. Ferrule is very important part which determines transmission efficiency and quality of information in the optical communication part. Most of ferrule processes are grinding which request high processing precision. The ultra precision centerless grinding machine for ferrule grinding was designed. The centerless grinding machine is composed of the high damping bed, grinding wheel spindle unit, regulating wheel spindle unit, feeding table and dressing unit. Reliability prediction was very important for the high quality design. In this study, centerless grinding machine was predicted reliability.
김현우(H.W. Kim),김보현(B. H. Kim),백재용(J. Y. Baek),정소영(S. Y. Jung),최헌종(H. J. Choi) (사)한국CDE학회 2010 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2010 No.1
Recently, business process management has become an important concept to define and execute business process. During the execution of the collaborative business processes defined by the consensus with manufacturing enterprises, a lot of variations can be occurred by various internal and external factors related to business. From this reason, manufacturing enterprises have tried to seek for a technology to define and execute the collaborative business process systematically under the dynamic situations approving process variation. This study defines the collaborative business process among manufacturing enterprises at first and proposes its execution technology under the dynamic situations. Here, the proposed execution technology includes the authority management of each process, sub-process, and activity for security, the forced execution of the incomplete process containing the undefined sub-process, the re-execution in a certain range of business process for correcting errors, and the dynamic selection of sub-process. Furthermore, this study implements a prototype system to check the validity of its application under the dynamic situations.